US1623364A - Beating engine - Google Patents

Description

' Amd 5v" 1927' sHLlcK BEATING ENGINE 2 Sheets-Sheet l 15 2 t O n m Hrw 6, qu 7 7 1." .w AJ f uw h 2 9 ll/Lm/ .m uw Al UML ,Wj HGb. Sme .,TF LMd NM Be l w.

a /W/M w44 5 0 M5 5 April 5 1927..-l

liatented Apr. 5, 1927.

Psrnlsi'r OFFICE.

LEQSHLICK, OF MONTREAL, QUEBEC, CANADA.

V1annuaire ENGINE.

Application 'filed February 17` 192.1. Serial No. 445,736. l

This invention, relatesito the art of paper making, and has for its object the effecting of certainimprovements in beating engines for the lows:

First, it has for its purposethe provision of a variabledischarge from the beater roll.

b'econd, the improvement of the beater roll itself, and also of the bed-plate.

Third, the effecting of means for withdrawing a substantial proportion -ot the water from the pulp on its way to the beater. roll, and for delivering it beyond the same.

Fourth, the reduction of the' stock channel about the feather in order to increase the velocity of the circulation. u'

Fifth,.the effecting of certain other 1mprov'ements in detail of construction herematter set forth.

In the drawings forring part .of i this specification, Fig. 1 is aside section of a ,part of a beating engine. Fig. 2 is a cross section thereof. Fig. 3 is a cross section of a modiied form of the engine. Fig. 4 is a side section of the-saine. Fig. 5 is a side sectional view of a' modification of the engine. F ig. 6 is aplan view of the beater engine. Fig. 7 is a longitudinal section of the beater roll. Fig. 8 1s an end view of a part of the roll.

In thefbeating engine embodying my improvements, the tubl is of substantlall wellknown construction, having a mideather 2, a beater roll 3 and bedplate 4. For providing a variable discharge from the beater roll, the bed-plate is given an extension 5, 'and behind the upper edge of the latter descends the lower edge of .a double plate 6, whose other edge passes behind a lip 7 rising from a back-fall board 9,the plate 6 corn'- posing the back-fall, and the topmost -portionv thereof being the crest of the back-fall. This causes the pulp and water from the beater roll 3 to rise to a considerable height before descending to the back-fall board and discharging into the channel about the mid-feather. This bed-plate crest 6 is vertically adjusted by means of screw rods 10, and hand wheels 11 supported by a hood 12. The out-flowing stock is reduced to a lower discharge level by means of a vertical gate 13 adjustably supported by the beater hood, the lower edge of the gate 13 being below the level of the top of the back-fall. This production of paper-pulp, as folserves to materially increase the velocity of the out-flow and thereby to decrease tation of the pulp in the channel.

The hood l2 is pivotally'supported'at-l/i and angnlarly adjusted by means of a screw rod 15 and hand wheel 16, a Ideliector v17 depending'therefrom close to the fly-bars 19 of the beater roll, in order to prevent an lumps of the ibre vpulp from passing bac 'over the roll. A stationary hood 20l 'envelops the top of the beater roll ,and'te'rminates` in a discliare 21 for receiving and delivering the sufficiently treated pulp which is carried back up and over the roll, an angularly adjustable lip 22 aiding in the better reception of the pulp into the discharge 21.

In Figs. V3 and 4 is illustrated another meansV for varying the discharge over the back-fall. Here a deflector board 23 is supported midway between the hood 12'and the back-fall board 9, and adjusted both angularly and vertically by means of screw rods 24, 25 and hand wheels 26, 27 thereon. This precipiserves substantially the same purpose as the adjustable back-fall 6. In place of the slidable gate 13 shown in Fig. 1, a.. gate 29 hinged at 30 is provided. An arm 31 rigid with the hood 12 and projecting into conf tact with a cam surface 32 connected with the bearing of the beater roll 3, so that as the latter is raisedV and lowered, the hood will rise andfall in unison therewith.

In Fig. 5, there is illustrated, in addition to a slightly different arrangement of the hood .and of its adjusting means, a means for separating from the pulp and water flowing toward the beater roll, a portion of the water and of the more fully treated pulp, and delivering it back" of the back-fall. This, which is also shown in Fig. 6, consists of a wheel 33 rotatably supported in the tub and formed with cupped vanes 34 dischar ing into a tubular axle 38,v whose open end 1s located over a basin 35 connected' by a pipe 36 to an overhung mouth 37 in the back-fall. It is, of course, understood that there is a suitable opening atthe inner end of each vane through the tubular axle 38 for the passage intothe axle of the pulp caught up by the vanes 34. If it is found that too much of the pulp caught up b one vane flows directly downward throng the hole of a 4following vane instead of along t0 los the outer end of the axle, the latter can be Adivided by axial partitions so' that the pulp delivered back of the back tall. This aids in accelerating the flow of the pulp about the mid-feather, byintroducing the fluid between the stock and the surface of the channel. The separating wheel is made to rotate by the tlow of the pulp toward the beater roll.

To further increase the speed of How, l prefer to narrow the channel between the vends of the mid-feather 2 and the ends of the tub, where the pulp is apt to'settle and clog the flow. To do this, the ends of the midfeat-her are provided with rounded heads 40 slidably adjusted toward and from the ends of the tub, and held at. any desired point of adjustment by .bolts and nuts 41` 42.

I also pre er to narrow the channeljust in lfront of the beater roll, as at. 43 in Fig. 6,

in order that the current of pulp and water shall meet the beater roll and 4bed plate centrally thereof, and with greater velocity.

At one end of the tub is an emptying opening 44 provided with a vertically slida le gate 45, as shown in Figs. 5 and 6. B turning its screw rods 46 until the top edyge of the gate has descended to a short distance above the floor of the tub, the contents of the tub escape therefrom., leaving entrapped by the gate 45 any trash, as nails, scraps of tin and the like.

Then changing over from one special product to another, it is often necessary to load the bearings of the beater roll, or their supports, so as to increase the pressure of the beater element-s. tortion of the beater elements on account ot' the deflection of the shaft. I prefer to place weights around the shaft of the roll, such Weights 47 beingl composed of any suitable material, as concrete, lead and the like, and preferably circular and mounted on the shaft l49 between the roll-heads 50, the roll being split longitudinally to permit theirapplication and removal, as in Fig. 8.

The knives or fly-barsv 19 are preferably .formed 'as parts of plates 52 which are adapted to be slid into dove'tail seats or grooves 53, as shown in Fig. 8, and to beheld against longitudinal displacement by means of lbolts 54 passing through ears 55, as shown in Figs. 7 and8.

l I refer to bend the fly bars 19, as sh o\vnin ig. 6, so that'the two halves of each compose an oblique angle with respect to each other, and so disposed that the central bends reach the bed plate before their ends v and thereby facilitate the expulsion of the entrained air from between the ily bars. By

lThis results in a disl thus forcing. lthe air out v.trombet'Weltall-'1@the fly-bars, the stock can enter more freely vand thereby receivev a more perfect beating effv feet. I t

As shown in Fig. 5, the tub 1 is supported near one end on a socket 56 and at its other` end by an adjusting screw'57 in lorder to" l slightly tilt it and thereby to vary the flowV of the stocktherein:

ln thearrangement of the hood 12 shown in Fig. 5, the same is pivotally supported y rising from said board, a foldedplate haviig its edges resting against said lip and boarand meansE fo'rvertically adjusting said folded plate.

2. A beating engine comprising a .beater roll, bed-plate, al back-fall board, two spaced members rising from the back-fall board and' bed-plate, respectively, a 'folded 4plate having its edges resting against said spaced` members, and screw-rods for justing said folded plate.

3. A beating engine comprising"a\ beater roll, bed-plate, a back-fall board, aL vertically adjustable plate rising from the back-fall vertically adroll, said plate and detlcctor being simultaneousl adjustable vertically.

4. A )eating engine comprising a beater roll` bed-plate, a back-fall board, a hood pivotally. supported, means for itsungular adjustment, a detlector depending from said hood into proximity to the beater roll, and a plate 'rising from the back-fall board and adjustably supported by said hood.

5. A beating engine comprising a tub, a beater roll, a back-fall, a hood located above said back-fall, a gate depending from said hood below the level of the stock back of the beater rol1,and means for vertically adjusting said hood.-

6. A beatingenglnecomprising altub, a

board, and a detlector gate depending intol l proximity to an upper portion of the beater 109" beater roll, 'a back-falli, a hoodlocated above said back-fall, and means for vertically adjusting said hood iu relation 4to the beater roll.

7. A beating engine con'iprising a tub, a

beater roll, a bacl{-fall, a semi-cylindrical hood located above said backgfall, and means for raising and lowering said hood in relation to the beater roll. f

8,. A beating engine comprising a tub, a beater roll, a vertically adjustableback-fall. a hood located above said back-fall, and means for raising and lowering said hood relative to said back-fall.

justing 9. A beating engine comprising a tub,` a beater roll` an adjustable back-fall, a `hood located above said back-fall, ,a vertically -walls of the' tub, and trunnions reaching through said slots.

11. A beating engine comprising a tub, a beater roll, a backfall having its topmost point above the horizontal center line of the beater roll, and means for vertically adsaid back-fall,y embracing' slots through the side walls of the tub. trunnions reaching through said slots and elevating mechanlsm connected with the outer ends of said trunnions.

12. A beating engine comprising a. tub, a beater roll, a back-fall, and means for vcrtically adjusting said back-,fall embracing slots Vthrough the `side walls ot the tub, trunnions extending through said slots, Screw rods engaging the upper of said trunnions, and nuts turning on said screw rods.

13. A beating engine comprising a tub, a beater roll. a back fall, andmeans for vcrtically adjusting said back-fall-embracing slots through the sidewalls of said tub, trunnions reaching through said slots, a

' screw rod at each side.of said tub engaging one of said trunnions, a nut on cach screw rod.fbevel gears and a. cross shaftl for causingl said nuts to turn simultaneously.

14. A beating engine comprising a tub, a beater roll, a back-fall, and means for vertically adjusting said back-fall embracing slots through'the side walls of said tub, trunnions reaching through said slots, means engaging the outer ends of said trunnio'ns for simultaneously adjusting both sides-of the back-fall, a plate within each side wall covering the slot therethrough, and resilient means pressing said plates against the inner surfaces of the tub.

15. A beating engine comprising a tub, a beater roll. .a back-fall, and means .for its vertical adjustment embracing slot's through the side walls of said tub. trunnions reaching through said slots, sleeves slidable on said trunnions, plates covering the inner surfaces of said side walls about said slots, helical springs mounted on said sleeves' to press said platesagainst s aid inner surfaces. 16. A beating engine comprising a tub, a

vbeater roll, a backfall and means for its.

vertical adjustment embracing slots through the side walls of said tub, two vertically spaced trfunnions at each side of said back fall extending through the` slot thereat,

plates covering said slots within `said jtub',

and `resilient 'means ,pressing said plates against Ithe surfaces of the side walls, said .atrium-ions passing through said plates.

17. A beatingfeng-ine Vcomprising a tub, a

beater roll. a baclcfall, and means for the IQ vertical adjustment `oi' said back-falll comprising slots throughthe side walls of said tub, operative mechanism reaching through said slots, and 4means for sealing said slots to prevent leakage of stock through them.

18. A beating engine comprisingV a tub, ,81;

beater roll, a backall, a hood located above said back-fall. and meansfor horizontally adjusting said hood to present its rear nearer tolpr farther from the back surface of the l'() said'back-fall, a defiector gate depending from said hood close to the `back surface of said roll. and means vfor horizontally shifting said gate to adjust the clearaucebe-` 19. A beating engine comprising a. tub, a beater roll, a back-fall.4 a hood located above.

the back-fall; and a vertically adjustable gate depending from said hood to a level below that of the crest of the backlfall.

22. A boating engine comprising a tub, a beater roll, a bed-plate, a back-fall, a hood located above the back-fall, an inclined Hoor member spaced over the back of the backfall, and a vertically adjustable gate depending from said hood to a level below that of the crest'of the back-fall, said inclined floor member reaching beyond said gate.

23. A beating engine comprising a tub, a beater roll, a bed-plate, a back-fall and a hood located above 'the back-fall, the inner surface of the hood being extended rearward and downward to a level below that of the crest of the back-fall. y

24. A beating engine comprising Va beater roll. tub, bedplate, backfall rising above the level of the axis of the roll, and deflecting curb located above the backfall. the face of the Abackfall adjacent the roll being fiat from the point where it-lea-vesvthe bed-plate to its upper edge, and' inclined at anangle .of

twenty degrees from the vertical, whereby gate being considerably below the level tail grooves in its periphery, and plats bearing the fly bars, provided with projections fitting said grooves, each plate having a. lug at one end extended toward the axis of the roll, and a bolt for each lug, for fastening said plates against longitudinal displacemeut.

26. A beater roll having a shaft, and weights adapted for application upon the shaft within the roll.

27. A beating engine comprising a tub, a

beater roll, a .b'ed-plate, a back-fall, a. hood located above the back-fall, and a vertically adjustable gate depending from said hood to a point considerably below the level of the topmost ortion of the. back-falL 28. A eating engine comprising a tub, a beater roll, a. bed-plate, a back-fall, a hood vlocated over the back-fall, aud a gate supported above the back'fall, the upper end of the back fall being above the level of the axis of said roll, and the lower edge of said gate being below such level, and the backfall being extended toa point. beyond the plane of said gate, whereby a head is .given to the pulp discharging from the back-fall which greatly increases the speed of the pulpcirculation.

29. A beating engine comprising a tub.l a beater roll, a. bed-plate, a back-fall having its` crest abovethe level .of the axis of the beater. roll, a hood located over the back-fall,

and a gate fixed in a vertical positionspaced Vabove the back-fall, the lower edge of the said of the highest part of the back-fall.

30. A beating engine comprising a beater tub, a beater roll, a backfall having its crest above the level of the axis of said roll, the intake level ahead ofthe roll being lower than the crest of the back-fall, and means for obstructing. the flow of the stock from the back-fall descending-to a point considerably below` the level of the crest of the back-fall,

whereby to increase the head and the flow of the stock beyond said point.

31. Afbeat-ing engine comprising a beater tub, a beateeroll, a back-fall having its crest above the level of the axis of said roll, and

a ygate located in the channel of said tub having its lower edge considerably below the level of the crest of the back-fall.

32. A beating engine comprising a beater tub, a beater roll, a back-.fall lhaving an' elevated crest, and a gate located inthe channel of said tub havingits lower portion below the level of said crestgandy rounded toy present a convexy surfacefto the flow: of the stock past it. '..M y A 33. A beating enginey comprisingabeater tub, a beater roll, a back -fall having an elevated crest, and a gate locatedin thechannel o f said tub having its lower portion considerably below the level of said crest and vertically ad'ustable. i

34. A eating exigirle comprising a tub, a beater roll, a back-fall, a hood located above the back-fall, and means for depressing the surface of the stock abm'e the foot being considerably below the level of the axis of the beater roll.-V whereby to build up a' considerable head back of the 'back-fall between the latter and saidgate.

36. A beatingyengine comprisinga tub, a beater roll, a back-fall and a vertically disposed gate depending into the stock `behind said back-fall, the lower edge of said vertical gate 'being considerably below the topmost point of said back-fall, whereby tobuild up va head between said backQfall and gate.

37. A beatingfengine comprisinga tub, a beater' roll, a back-fall, a vertically disposed gate depending into the stock back of the back-fall, and means for fastening said gate to the walls of the tub.

38. A beating engine comprising a tub, a beater roll, a back-fall, and a vertical gate depending into the .stock back of the backfall, the lower portion of said gate as it presents itself to the onflowing stock being curved to oi'er a minimum of resistance to the passage of the stock.

In testimony that I claim the foregoing invention, I have hereunto set my hand this v 15th day of February, 1921. A f

` LEO SHLICK.

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